Improvement in water-closets



J. DEMARBST. Water-Mosfet.

No. 210,677.y Patented Dec. 10,1878.'

NZPETERS, ?HOTOLITH03RAPHH2, WASHINGTON. D CV UNITED STATES PATENT OEEroE.

JOHN DEMAREST, OF NEW YORK, N. Y.

IMPROVEMENT IN WATER-CLOSETS.

Specification forming part of Letters Patent N0. 210,677, dated December 10, 1878; application filed September 16, 1878.

To all whom it may concern Be it known that I, JOHN DEMAuEsT, of the city and State of New York, have invented an Improvement in Water-Closets, of which the following is a specicat-ion:

My invention relates to a watercloset basin which is made with nearly straight sides and overflow-passages, to which` a valve is applied to exclude sewer-gas.

There is an ascending overflow that allows the escape of surplus water, which water runs down through a water-way into the receiver behind the upward-closin g valve at the bottom of the basin.

The bowl of the closet is provided with an opening at the bottom, closed by a valve that shuts upwardly, and said basin-valve is operated by an arm upon a weighted rock-shaft. These parts are similar to those shown in my application for a patent dated June 19, 1878, and do not require further illustration or description.

In the drawing, Figure 1 is a vertical section of the closet-bowl, and Fig. 2 is a sectional plan of the same at the line :c fr.

The basin a is adapted to rest upon the plate b, and it is fastened to the saine and the iange c of the receiver by metal clips d, or by set-screws or other suitable clamping devices.

This basin is made with nearly vertical sides above the water-line in order that the sides may not become soiled.

Around the upper end of the basin there is a tubular inlet waterway, t, slotted at the inner portion, a, and the water is supplied by a tangential pipe, so as to flow around the pipe t and into the basin and thoroughly wash the same.

The water-way c is either made of porcelain with the basin itself, or else a separate piece cemented thereto.

There are holes j' in the side of the basin a opening into the ascending water-way g, and

the upper ends of the water-ways are iiat, but at an inclination, and a valve, h., of india-rubber or other suitable material, cov ers the waterwayg, but not the water-way c, and a domeshaped cap, z', secures the edges of the sheet 0i' rubber or other iiexible material of which the valve h is composed. Bolts at s are provided for holding this cap in place.

It is to be understood that the surplus water running into the basin a passes through the holes f, rises in the water-way g, lifts the valve h, and escapes freely 5 but such valve closes and prevents any smell from the sewer passing up through c and escaping into the basin, thereby obviating a difficulty heretofore experienced of deleterious sewengases escaping into houses. v

It is important that the air in the container or hopper have a free vent when the water in the pan is allowed to descend; otherwise the air escapes through the closet in bubbles that disturb the water. To obviate this there is an escape-tube, fo, from the top ofthe cap t' to a ventilatingpipe rising above the building or passing to any suitable point for the outlet.

In the top of the receiver Z is a recess, that receives the plate l), forming the seat for the valve nl, that is closed upwardly by the leverarm p.

1 claim as my invention- 1. The combination of the l'iassages c and g and valve h with the watercloset basin a, substantially as described.

2. Thecombination, with the water-passages c g and valve, of a cover, i, having an opening connected with a ventilating-pipe, substantially as set forth.

Sign ed by ine this 9th day of September, AA. D. 1878.

JOHN DEMAREST.

Witnesses:

Giras. H. SMITH, GEO. T. PINOKNEY.

l, ,y l 

